Shue will join the cast as a series regular on the February 15 episode, which is around the time of Helgenberger's final episode, according to E! Online.

Her character will reportedly join the current CSI team after completing an anger management course, following her firing by boss D.B. Russell (Ted Danson) in Seattle.

Executive producer Don McGill said: "The first time things didn't go so well between the two of them. Maybe the second time's the charm, or not."

Carol Mendelsohn added: "While it's difficult to say goodbye to a beloved character like Catherine Willows, it's exciting to start a journey with a new CSI, especially when that character is played by Elisabeth Shue. The new CSI also struggles with brutal honesty issues and suffers no fools."